graphannis 0.10.1

This is a prototype for a new backend implementation of the ANNIS linguistic search and visualization system.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

use simplelog::{LevelFilter, WriteLogger, Config};
use std::fs::File;
use super::cerror::{ErrorList, Error};
use libc;
use std;
use simplelog;

#[repr(C)]
pub enum LogLevel {
    Off,
    Error,
    Warn,
    Info,
    Debug,
    Trace,
}

impl From<LogLevel> for simplelog::LevelFilter {
    fn from(level : LogLevel) -> simplelog::LevelFilter {
        match level {
            LogLevel::Off => simplelog::LevelFilter::Off,
            LogLevel::Error => simplelog::LevelFilter::Error,
            LogLevel::Warn => simplelog::LevelFilter::Warn,
            LogLevel::Info => simplelog::LevelFilter::Info,
            LogLevel::Debug => simplelog::LevelFilter::Debug,   
            LogLevel::Trace => simplelog::LevelFilter::Trace, 
        }
    }
}

#[no_mangle]
pub extern "C" fn annis_init_logging(logfile : * const libc::c_char, level : LogLevel, 
    err: *mut * mut ErrorList) {
    
    if !logfile.is_null() {
        let logfile : &str = &cstr!(logfile);
        
        match File::create(logfile) {
            Ok(f) => {
                if let Err(e) = WriteLogger::init(LevelFilter::from(level), Config::default(), f) {
                    // File was created, but logger was not.
                    if !err.is_null() {
                        unsafe {*err =  Box::into_raw(Box::new(vec![Error::from(e)]));}
                    }
                }
            }
            Err(e) => {
                if !err.is_null() {
                    unsafe {*err =  Box::into_raw(Box::new(vec![Error::from(e)]));}
                }
            }
        };
    }
}